CN104173080B - A kind of plugging device - Google Patents
A kind of plugging device Download PDFInfo
- Publication number
- CN104173080B CN104173080B CN201410347325.7A CN201410347325A CN104173080B CN 104173080 B CN104173080 B CN 104173080B CN 201410347325 A CN201410347325 A CN 201410347325A CN 104173080 B CN104173080 B CN 104173080B
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- Prior art keywords
- plugging device
- choked flow
- filament
- diameter
- supporting part
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- 238000009954 braiding Methods 0.000 claims abstract description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 239000000956 alloy Substances 0.000 claims description 7
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical class [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 claims description 7
- 229910001000 nickel titanium Inorganic materials 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000005755 formation reaction Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 11
- 231100000915 pathological change Toxicity 0.000 abstract description 3
- 230000036285 pathological change Effects 0.000 abstract description 3
- 208000003278 Patent Ductus Arteriosus Diseases 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 210000004369 Blood Anatomy 0.000 description 3
- 210000001147 Pulmonary Artery Anatomy 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 238000009941 weaving Methods 0.000 description 3
- 210000000709 Aorta Anatomy 0.000 description 2
- 208000000045 Atrial Heart Septal Defects Diseases 0.000 description 2
- 206010003664 Atrial septal defect Diseases 0.000 description 2
- 208000001910 Ventricular Heart Septal Defects Diseases 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 230000003902 lesions Effects 0.000 description 2
- 238000002560 therapeutic procedure Methods 0.000 description 2
- 201000003130 ventricular septal defect Diseases 0.000 description 2
- 210000001367 Arteries Anatomy 0.000 description 1
- 210000003017 Ductus Arteriosus Anatomy 0.000 description 1
- 210000003462 Veins Anatomy 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 201000010238 heart disease Diseases 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 200000000020 tissue injury Diseases 0.000 description 1
- 210000001519 tissues Anatomy 0.000 description 1
- 230000003245 working Effects 0.000 description 1
Abstract
The present invention provides a kind of plugging device, it it is the network structure being woven into by shape memory silk thread, described network structure includes supporting part and at least one choked flow disc of column, described choked flow disc is connected with supporting part by the torsional part of column, the diameter of described torsional part is less than supporting part and the diameter of choked flow disc, described choked flow disc and supporting part are equipped with choked flow film, the outer face of described choked flow disc or supporting part is provided with jointing, described network structure is formed by the alternately arranged braiding of crin and filament, described crin is evenly distributed along cancellated circumferential direction, it is provided with at least filament between adjacent two crins.The mode that the present invention uses crin and filament to combine carries out the braiding of plugging device, and conveying effect is i.e. effectively ensured, and in turn ensure that memory rebound performance；In addition the present invention can play drawing effect to a certain extent, therefore can be adjusted according to pathological changes, and the suitability is good.
Description
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly relate to a kind of plugging device for patent ductus arteriosus.
Background technology
Interventional therapy is a kind of invasive treatment utilizing modern high tech method to carry out, it is simply that at medical imaging device
Under guiding, special conduit, seal wire and Implantable Medical Device are introduced human body, internal pathological changes is carried out diagnosis and local is controlled
Treat.Wherein Implantable Medical Device includes plugging device, vena cava filter, turn, support etc..
Plugging device is a kind of for treating structural heart disease atrial septal defect (ASD), ventricular septal defect (VSD), moving
The medical apparatus and instruments of the diseases such as arteries and veins patent ductus (PDA).According to the difference of disease, the structure of plugging device there is also difference, wherein,
The plugging device that it is now commonly used in patent ductus arteriosus (PDA) operation is mainly by a column part and a disc structure
Becoming, wherein column part is mainly used in being fixed on arterial catheter sites, and disc is positioned at ductus arteriosus high pressure side and guarantees closure dress
The stability put.But being because patent ductus arteriosus defect to come in every shape, particularly in high pressure side, this makes tradition tremulous pulse lead
The disc of pipe patent plugging device is not tight with defect laminating, have impact on the plugging effect of plugging device；Meanwhile, tradition closure dress
Putting and can only be put into defect by pulmonary artery side, for child patient, tradition plugging device makes operation pathway be limited
System, causes trouble to operation.In order to solve the problems referred to above, technical staff proposes some solutions: 1, use size less
Delivery sheath carry out the conveying of plugging device, but so can affect conveying effect, cause conveying to have some setbacks, when increasing operation
Between；2, the nitinol alloy wire braiding plugging device using diameter less carries in small size sheath pipe to meet, but so can
Because hardness affects memory rebound performance not, it is impossible to reach the good effect stopping blood.So how guarantee conveying
The smooth and easy memory rebound performance of guarantee simultaneously is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
The technical problem to be solved in the present invention is that providing a kind of performs the operation for patent ductus arteriosus, meets defeated when operation
Send smooth and easy, meet the plugging device of memory rebound performance, to overcome the drawbacks described above of prior art simultaneously.
In order to solve above-mentioned technical problem, the present invention adopts the following technical scheme that a kind of plugging device, is by shape memory
The network structure that silk thread is woven into, described network structure includes supporting part and at least one choked flow disc of column, described choked flow
Disc is connected with supporting part by the torsional part of column, and the diameter of described torsional part is straight less than supporting part and choked flow disc
Footpath, is equipped with choked flow film in described choked flow disc and supporting part, the outer face of described choked flow disc or supporting part is provided with connection
Joint, described network structure is formed by the alternately arranged braiding of crin and filament, and described crin is equal along cancellated circumferential direction
Even arrangement, is provided with at least filament between adjacent two crins.
Preferably, the total radical of described crin is the 1/5～1/3 of the total radical of filament.
Preferably, the diameter of section of described torsional part is the 1/3～2/3 of supporting part diameter of section.
Preferably, in described network structure, all crins and filament cross one another formation network.
Preferably, in described network structure, all crins cross one another formation network, between adjacent two crins
Filament crosses one another and forms oval, circular or similar round grid.
Preferably, the grid in the centre position of described supporting part is less than the grid at both ends.
Preferably, a diameter of the 0.02～0.10mm of described filament.
Preferably, the diameter of described crin is 1.4～4.0 times of filament diameter.
Preferably, described shape memory silk thread is nitinol alloy wire.
As it has been described above, one plugging device of the present invention, have the advantages that
1, the mode that the present invention uses crin and filament to combine carries out the braiding of plugging device, and the density of silk material increases,
And then making grid less, the resistance blood effect under surface tension effects increases；
2, because the number of filaments of plugging device is more, and filament pliability is good and softer, when conveying to delivery sheath
The pressure of inwall is the least, so smoothness during conveying is more preferable；Simultaneously after being transported to lesion locations, plugging device is overall
Little to peripheral tissue injury, beneficially plugging device combines with tissue；
3, the centre position grid of the supporting part of the present invention is less, can play drawing effect to a certain extent, therefore
Can be adjusted according to pathological changes；
4, the plugging device of the present invention can be put into defect and can also put into defect portion from pulmonary artery side from aorta side
Position, adds the range in operation so that some other conventional cardiac are got involved operation and are achieved.
Accompanying drawing explanation
Fig. 1 is the structure chart of double plate sheet of the present invention.
Fig. 2 is the structure chart of single-deck sheet of the present invention.
Fig. 3 is the first embodiment schematic diagram of Fig. 2.
Fig. 4 is the second embodiment schematic diagram of Fig. 2.
Fig. 5 is the first crin of the present invention and weaving filaments structural representation.
Fig. 6 is the second crin of the present invention and weaving filaments structural representation.
Fig. 7 is the third crin of the present invention and weaving filaments structural representation.
In figure: 1 supporting part 2 torsional part
3 choked flow disc 4 choked flow films
5 jointings
Detailed description of the invention
Structure depicted in Figure of description, ratio, size etc., the most only in order to coordinate the content disclosed in description, with
Understand for those skilled in the art and read, being not limited to the enforceable qualifications of the present invention, therefore do not have technically
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, do not affecting what the present invention can be generated by
Under effect and the purpose that can reach, all should still fall in the range of disclosed technology contents can be contained.Meanwhile,
In this specification cited as " on ", D score, "front", "rear", the term such as " middle ", be merely convenient to the clear of narration, and
It is not used to limit the enforceable scope of the present invention, being altered or modified of its relativeness, is changing under technology contents without essence, when
Also the enforceable category of the present invention it is considered as.
Fig. 1-Fig. 2 show a kind of plugging device, is the network structure being woven into by shape memory silk thread, described netted knot
Structure includes supporting part 1 and at least one choked flow disc 3 of column, and described choked flow disc 3 passes through torsional part 2 and the supporting part of column
1 is connected, and includes two choked flow discs 3 as shown in Figure 1, includes a choked flow disc 3 shown in Fig. 2.Torsional part 2 described in this device
Diameter less than supporting part 1 and the diameter of choked flow disc 3, described choked flow disc 3 and supporting part 1 are equipped with choked flow film 4, described
The outer face of choked flow disc 3 or supporting part 1 is provided with jointing 5, and described jointing 5 and the instrument carrying plugging device are joined
Close and connect；Described network structure is formed by the alternately arranged braiding of crin and filament, and described crin is along cancellated circumferential direction
Evenly distributed, it is provided with at least filament between adjacent two crins.Preferably, the total radical of described crin is the total radical of filament
1/5～1/3, as a example by Fig. 5 or Fig. 6, described crin radical is the 1/3 of filament radical, arranges every three filaments when braiding
A piece crin；As it is shown in fig. 7, described crin radical is the 1/5 of filament radical, arrange one slightly when braiding every five filaments
Silk, it is ensured that the braiding of plugging device is uniform, and then ensure working effect.
In the present embodiment, the diameter of section of described torsional part 2 is the 1/3～2/3 of supporting part 1 diameter of section, in order to
Torsional part 2 is more flexible when reversing, as it is shown on figure 3, the diameter of section of torsional part 2 is supporting part 1 diameter of section 1/3；As
Shown in Fig. 4, the diameter of section of torsional part 2 is the 2/3 of supporting part 1 diameter of section.
This device crin and filament have different arrangement architectures, such as shown in Fig. 5, in network structure described in this device,
All crins and filament cross one another formation network.Or as shown in Figure 6,7, in network structure described in this device, all
Crin crosses one another formation network, and the filament between adjacent two crins crosses one another, and formation is oval, circular or class circle
Shape grid.Wherein Fig. 6 show schematic diagram when crin quantity is number of filaments 1/3, and it is filament number that Fig. 7 show crin quantity
Schematic diagram when measuring 1/5.
In the present embodiment, the grid in the centre position of described supporting part 1 is less than the grid at both ends, so actually used
Time this plugging device can stretch or shrink, and then meet the needs of different operating situation.
In the present embodiment, according to actual needs, the diameter of section of described choked flow disc 3 can cutting more than supporting part 1
Face diameter.
A diameter of 0.02 of filament described in the present embodiment～0.10mm, further, the diameter of described crin is filament
1.4～4.0 times of diameter.
Heretofore described shape memory silk thread is nitinol alloy wire.
The nitinol alloy wire that the present invention uses crin different carries out the braiding of plugging device, and its main purpose and principle be:
When pushing plugging device in operation, plugging device is in contraction-like, and has choked flow film in plugging device, due to choked flow film
Edge may expose from the grid of nitinol alloy wire with conveying plugging device sheath tube wall produce friction, choked flow film edge with
It is the biggest that tube wall contacts the most frictional force, and when conveying, resistance is the biggest, also the smoothness of just impact operation, especially choked flow film
After being stained with blood, it can increase further with the frictional force of sheath tube wall；The present invention uses the nitinol alloy wire that thickness is different to compile
Knit plugging device, on the one hand because filament is many, the size of grid can be reduced during establishment, prevent choked flow film edge from contacting with tube wall
Many, reduce frictional force；On the other hand filament because thin its pliability more preferably, softer, therefore when conveying to sheath inside pipe wall
The pressure formed is the least, and then also ensures that the smoothness of conveying, simultaneously as the effect of crin, does not interferes with closure dress
Put memory rebound performance during abjection implantation lesion locations from sheath pipe.Additionally, because the present invention uses crin and filament mixing
Braiding, can control maximum outside diameter when plugging device shrinks, also just can use less delivery sheath, reduce the body to patient
Body injures.
The using method of the present invention is identical with conventional plugging device using method, is all delivered to human body by sheath pipe
Diseased region carries out Occlusion therapy, and the present invention both can put into defect and also can put into from aorta side from pulmonary artery side, added
Range in operation so that some other conventional cardiac are got involved operation and are achieved.
In sum, one plugging device of the present invention, it is possible to during solution patent ductus arteriosus defect operation, plugging device is not
The problem that conveying is smooth and easy and remembers rebound performance can be taken into account.So, the present invention effectively overcomes reality more of the prior art
Problem thus have the highest value and use meaning.
The principle of the above-mentioned embodiment only illustrative present invention and effect thereof, not for limiting the present invention.This
Bright also have many aspects can improve on the premise of overall thought, all can be for those skilled in the art
Under the spirit and the scope of the present invention, above-described embodiment can be modified or change.Therefore, art such as
All equivalences that middle tool usually intellectual is completed under without departing from disclosed spirit and technological thought modify or
Change, must be contained by the claim of the present invention.
Claims (8)
1. a plugging device, is the network structure being woven into by shape memory silk thread, it is characterised in that: described network structure bag
Including supporting part (1) and at least one choked flow disc (3) of column, described choked flow disc (3) is by the torsional part (2) of column and props up
Support part (1) is connected, and the diameter of described torsional part (2) is less than supporting part (1) and the diameter of choked flow disc (3), described choked flow dish
Being equipped with choked flow film (4) in sheet (3) and supporting part (1), the outer face of described choked flow disc (3) or supporting part (1) is provided with even
Joint (5), described network structure is formed by the alternately arranged braiding of crin and filament, and described crin is along cancellated Zhou Changfang
To evenly distributed, between adjacent two crins, be provided with at least filament, the total radical of described crin be the total radical of filament 1/5～
1/3。
A kind of plugging device, it is characterised in that: the diameter of section of described torsional part (2) is for supporting
The 1/3～2/3 of portion (1) diameter of section.
A kind of plugging device, it is characterised in that: in described network structure, all crins and filament
Cross one another formation network.
A kind of plugging device, it is characterised in that: in described network structure, all crins intersect mutually
Fork-shaped diamondwise grid, the filament between adjacent two crins crosses one another and forms oval, circular or similar round grid.
5. according to plugging device a kind of described in claim 3 or 4, it is characterised in that: the net in the centre position of described supporting part (1)
Lattice are less than the grid at both ends.
A kind of plugging device, it is characterised in that: a diameter of the 0.02 of described filament～0.10mm.
A kind of plugging device, it is characterised in that: the diameter of described crin is the 1.4 of filament diameter
～4.0 times.
A kind of plugging device, it is characterised in that: described shape memory silk thread is nitinol alloy wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410347325.7A CN104173080B (en) | 2014-07-21 | A kind of plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410347325.7A CN104173080B (en) | 2014-07-21 | A kind of plugging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104173080A CN104173080A (en) | 2014-12-03 |
| CN104173080B true CN104173080B (en) | 2017-01-04 |
Family
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|---|---|---|---|---|
| CN2613248Y (en) * | 2003-03-21 | 2004-04-28 | 龚善石 | Ventricular septel defect block device |
| CN2705131Y (en) * | 2004-04-21 | 2005-06-22 | 龚善石 | Novel heart atrial septal deffect blocking device |
| CN2897196Y (en) * | 2006-01-10 | 2007-05-09 | 中国人民解放军第二军医大学 | Double-disk thin interventricular septal defect stopper with left large and right small |
| CN200980690Y (en) * | 2006-11-13 | 2007-11-28 | 王震 | Multifunctional heart partition defect blocking device |
| CN201879866U (en) * | 2010-12-06 | 2011-06-29 | 王广义 | Meshed support used for occluding left auricular appendage |
| CN201879865U (en) * | 2010-12-06 | 2011-06-29 | 王广义 | Patent arterial duct occluder |
| CN202875400U (en) * | 2012-09-17 | 2013-04-17 | 邢泉生 | Membrane ventricular septal defect plugging device and plugging device set |
| WO2013103888A1 (en) * | 2012-01-06 | 2013-07-11 | Paul Lubock | Expandable occlusion devices and methods of use |
| CN203122483U (en) * | 2013-01-04 | 2013-08-14 | 刘文修 | Congenital heart disease plugging device capable of effectively reducing sheathing canal diameter |
| CN103845096A (en) * | 2014-03-10 | 2014-06-11 | 上海形状记忆合金材料有限公司 | Left auricle plugging device and production method thereof |
| CN204133501U (en) * | 2014-07-21 | 2015-02-04 | 上海形状记忆合金材料有限公司 | A kind of plugging device |
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613248Y (en) * | 2003-03-21 | 2004-04-28 | 龚善石 | Ventricular septel defect block device |
| CN2705131Y (en) * | 2004-04-21 | 2005-06-22 | 龚善石 | Novel heart atrial septal deffect blocking device |
| CN2897196Y (en) * | 2006-01-10 | 2007-05-09 | 中国人民解放军第二军医大学 | Double-disk thin interventricular septal defect stopper with left large and right small |
| CN200980690Y (en) * | 2006-11-13 | 2007-11-28 | 王震 | Multifunctional heart partition defect blocking device |
| CN201879866U (en) * | 2010-12-06 | 2011-06-29 | 王广义 | Meshed support used for occluding left auricular appendage |
| CN201879865U (en) * | 2010-12-06 | 2011-06-29 | 王广义 | Patent arterial duct occluder |
| WO2013103888A1 (en) * | 2012-01-06 | 2013-07-11 | Paul Lubock | Expandable occlusion devices and methods of use |
| CN202875400U (en) * | 2012-09-17 | 2013-04-17 | 邢泉生 | Membrane ventricular septal defect plugging device and plugging device set |
| CN203122483U (en) * | 2013-01-04 | 2013-08-14 | 刘文修 | Congenital heart disease plugging device capable of effectively reducing sheathing canal diameter |
| CN103845096A (en) * | 2014-03-10 | 2014-06-11 | 上海形状记忆合金材料有限公司 | Left auricle plugging device and production method thereof |
| CN204133501U (en) * | 2014-07-21 | 2015-02-04 | 上海形状记忆合金材料有限公司 | A kind of plugging device |
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